1. 杀死所有运行容器
# docker kill $(docker ps -a -q)
2. 删除所有容器
# docker rm $(docker ps -a -q)
3. 删除所有镜像
# docker rmi $(docker images -q)
4. 停止 docker 服务
# systemctl stop docker
5. 删除存储目录
# rm -rf /etc/docker
# rm -rf /run/docker
# rm -rf /var/lib/dockershim
# rm -rf /var/lib/docker
如果发现删除不掉，需要先 umount，如
# umount /var/lib/docker/devicemapper
6. 卸载 docker
查看已安装的 docker 包
# yum list installed | grep docker
卸载相关包
# yum remove docker-engine docker-engine-selinux.noarch
sudo yum –y remove docker-buildx-plugin.x86_64 docker-ce.x86_64 docker-ce-cli.x86_64 docker-ce-rootless-extras.x86_64 docker-compose-plugin.x86_64 docker-scan-plugin.x86_64
